Inventor · disambiguated record
Masahiro Fujii
Also filed as: FUJII MASAHIRO
93 granted patents·43 pending applications·1,757 citations·filing 1982–2025
99Inventor score
Top patents by PatentIndex Score
136 records- 0195US6508528B2Ink jet printer, control method for the same, and data storage medium for recording the control methodSEIKO EPSON CORP·Filed 2000·Granted Jan 21, 2003·70 cites·26 claims
- 0295US5644341AInk jet head drive apparatus and drive method, and a printer using theseSEIKO EPSON CORP·Filed 1994·Granted Jul 1, 1997·128 cites·24 claims
- 0394US5071751AProcess for preparing hyaluronic acidCHISSO CORP·Filed 1989·Granted Dec 10, 1991·59 cites·2 claims
- 0492US5668579AApparatus for and a method of driving an ink jet head having an electrostatic actuatorSEIKO EPSON CORP·Filed 1994·Granted Sep 16, 1997·91 cites·75 claims
- 0590US6396330B1Mixer circuitNEC CORP·Filed 2000·Granted May 28, 2002·40 cites·15 claims
- 0688US7530670B2Electrostatic actuator, droplet discharging head, droplet discharging apparatus, electrostatic device, and method of manufacturing theseSEIKO EPSON CORP·Filed 2005·Granted May 12, 2009·10 cites·17 claims
- 0788US5087446ASkin cosmeticsCHISSO CORP·Filed 1990·Granted Feb 11, 1992·101 cites·7 claims
- 0887US6804537B1Data communication system providing most adaptive initial menu and data communication terminal used in the sameNEC CORP·Filed 2000·Granted Oct 12, 2004·54 cites·21 claims
- 0987US5912684AInkjet recording apparatusSEIKO EPSON CORP·Filed 1997·Granted Jun 15, 1999·63 cites·12 claims
- 1087US5052832APrint head and roller biasing mechanism for a hand held thermal printerSEIKO EPSON CORP·Filed 1989·Granted Oct 1, 1991·48 cites·13 claims
- 1185US5818473ADrive method for an electrostatic ink jet head for eliminating residual charge in the diaphragmSEIKO EPSON CORP·Filed 1996·Granted Oct 6, 1998·54 cites·16 claims
- 1285US5563634AInk jet head drive apparatus and drive method, and a printer using theseSEIKO EPSON CORP·Filed 1994·Granted Oct 8, 1996·52 cites·24 claims
- 1384US6474784B1Ink-jet head, ink jet printer, and its driving methodSEIKO EPSON CORP·Filed 1999·Granted Nov 5, 2002·49 cites·19 claims
- 1484US5992978AInk jet recording apparatus, and an ink jet head manufacturing methodSEIKO EPSON CORP·Filed 1995·Granted Nov 30, 1999·48 cites·7 claims
- 1582US10519677B2Actuator and force driving mechanism for treatment toolOLYMPUS CORP·Filed 2017·Granted Dec 31, 2019·4 cites·12 claims
- 1682US5471103AMotor for providing a vibrating action for a radio pagerNEC CORP·Filed 1992·Granted Nov 28, 1995·47 cites·11 claims
- 1781US10808658B2Connection state determination device for breather pipeHONDA MOTOR CO LTD·Filed 2018·Granted Oct 20, 2020·2 cites·3 claims
- 1881US6863375B2Ejection device and inkjet head with silicon nozzle plateSEIKO EPSON CORP·Filed 2001·Granted Mar 8, 2005·20 cites·5 claims
- 1981US6601947B1Narrow-pitch connector, electrostatic actuator, piezoelectric actuator, ink-jet head, ink-jet printer, micromachine, liquid crystal panel, and electronic apparatusSEIKO EPSON CORP·Filed 2000·Granted Aug 5, 2003·22 cites·18 claims
- 2081US6315390B1Line ink jet head and a printer using the sameSEIKO EPSON CORP·Filed 2000·Granted Nov 13, 2001·36 cites·15 claims
- 2180US7581824B2Electrostatic actuator, droplet discharge head and method for manufacturing the droplet discharge head, droplet discharge apparatus, and deviceSEIKO EPSON CORP·Filed 2005·Granted Sep 1, 2009·6 cites·17 claims
- 2279US7976127B2Electrostatic actuator, droplet discharge head, methods for manufacturing the same and droplet discharge apparatusSEIKO EPSON CORP·Filed 2007·Granted Jul 12, 2011·5 cites·10 claims
- 2379US4561911AAqueous solution for cooling cold-rolled steel strip in a continuous annealing processNIPPON STEEL CORP·Filed 1984·Granted Dec 31, 1985·17 cites·17 claims
- 2478US7766456B2Electrostatic actuator, liquid droplet discharging head, methods for manufacturing them, and liquid droplet discharging apparatusSEIKO EPSON CORP·Filed 2007·Granted Aug 3, 2010·4 cites·8 claims
- 2578US7658471B2Droplet jet head and droplet jet apparatusSEIKO EPSON CORP·Filed 2006·Granted Feb 9, 2010·4 cites·10 claims
- 2678US7396511B2Dispensing device, dispensing method and method of detecting defective discharge of solution containing biological sampleSEIKO EPSON CORP·Filed 2003·Granted Jul 8, 2008·15 cites·12 claims
- 2778US6371598B1Ink jet recording apparatus, and an ink jet headSEIKO EPSON CORP·Filed 1998·Granted Apr 16, 2002·37 cites·35 claims
- 2877US5975668AInk jet printer and its control method for detecting a recording conditionSEIKO EPSON CORP·Filed 1997·Granted Nov 2, 1999·32 cites·17 claims
- 2977US5894316AInk jet head with diaphragm having varying compliance or stepped opposing wallSEIKO EPSON CORP·Filed 1996·Granted Apr 13, 1999·37 cites·9 claims
- 3076US8538756B2In-vehicle device and method for modifying display mode of icon indicated on the sameFUJII MASAHIRO·Filed 2011·Granted Sep 17, 2013·8 cites·19 claims
- 3175US5572242AInkjet having recovery system control method and apparatus operating during periods of non-useSEIKO EPSON CORP·Filed 1993·Granted Nov 5, 1996·33 cites·8 claims
- 3275US2025331703A1Medical manipulator and medical manipulator systemOLYMPUS CORP·Filed 2025·Application pending·0 cites
- 3375US2025331941A1Medical manipulator and medical manipulator systemOLYMPUS CORP·Filed 2025·Application pending·0 cites
- 3474US6419344B2Ink-jet head and ink-jet printerSEIKO EPSON CORP·Filed 2001·Granted Jul 16, 2002·15 cites·24 claims
- 3574US6168263B1Ink jet recording apparatusSEIKO EPSON CORP·Filed 1998·Granted Jan 2, 2001·31 cites·12 claims
- 3674US6164759AMethod for producing an electrostatic actuator and an inkjet head using itSEIKO EPSON CORP·Filed 1999·Granted Dec 26, 2000·32 cites·5 claims
- 3773US8136925B2Electrostatic actuator, liquid droplet discharging head, methods for manufacturing them, and liquid droplet discharging apparatusHANO YOSHIFUMI·Filed 2010·Granted Mar 20, 2012·2 cites·8 claims
- 3872US5519578AFolded printed wiring board structure with electromagnetic shieldNEC CORP·Filed 1994·Granted May 21, 1996·35 cites·11 claims
- 3971US5821951AInk jet printer having an electrostatic activator and its control methodSEIKO EPSON CORP·Filed 1997·Granted Oct 13, 1998·25 cites·49 claims
- 4071US2023318567A1Resonator device, resonator module, electronic apparatus, and vehicleSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 4169US6481833B1Inkjet printerSEIKO EPSON CORP·Filed 2000·Granted Nov 19, 2002·12 cites·15 claims
- 4269US5734395AInk jet headSEIKO EPSON CORP·Filed 1993·Granted Mar 31, 1998·25 cites·15 claims
- 4368US7723641B2Brittle material substrate scribing device and scribing method, and automatic analysis lineMITSUBOSHI DIAMOND IND CO LTD·Filed 2004·Granted May 25, 2010·12 cites·10 claims
- 4468US6522902B2Apparatus for saving power consumption of a portable electronic deviceNEC CORP·Filed 1998·Granted Feb 18, 2003·57 cites·8 claims
- 4568US6213590B1Inkjet head for reducing pressure interference between ink supply passagesSEIKO EPSON CORP·Filed 1999·Granted Apr 10, 2001·21 cites·8 claims
- 4667US7661794B2Electrostatic actuator, droplet discharge head, method for driving droplet discharge head, and method for manufacturing electrostatic actuatorSEIKO EPSON CORP·Filed 2006·Granted Feb 16, 2010·2 cites·2 claims
- 4767US2025010425A1Polishing device, polishing method, and machine partNHK SPRING CO LTD·Filed 2024·Application pending·0 cites
- 4865US6375858B1Method of forming nozzle for injection device and method of manufacturing inkjet headSEIKO EPSON CORP·Filed 1998·Granted Apr 23, 2002·20 cites·10 claims
- 4963US6013953ASemiconductor device with improved connection reliabilityNEC CORP·Filed 1998·Granted Jan 11, 2000·28 cites·14 claims
- 5063US5020928ARibbon guiding mechanismSEIKO EPSON CORP·Filed 1989·Granted Jun 4, 1991·13 cites·6 claims
Showing the top 50 of 136 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masahiro Fujii files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →